Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.153
IF5.153
IF 5-year value: 5.460
IF 5-year
5.460
CiteScore value: 7.8
CiteScore
7.8
SNIP value: 1.623
SNIP1.623
IPP value: 4.91
IPP4.91
SJR value: 2.092
SJR2.092
Scimago H <br class='widget-line-break'>index value: 123
Scimago H
index
123
h5-index value: 65
h5-index65
Volume 14, issue 5
Hydrol. Earth Syst. Sci., 14, 719–727, 2010
https://doi.org/10.5194/hess-14-719-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.
Hydrol. Earth Syst. Sci., 14, 719–727, 2010
https://doi.org/10.5194/hess-14-719-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  04 May 2010

04 May 2010

Spectral approach to seawater intrusion in heterogeneous coastal aquifers

C.-M. Chang and H.-D. Yeh C.-M. Chang and H.-D. Yeh
  • Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan

Abstract. This work presents a two-dimensional horizontal plane model of seawater intrusion into a heterogeneous coastal unconfined aquifer under the spatially random recharge condition from a stochastic point of view. The stochastic response of the coastal unconfined aquifer is attributed to uncertainties related to the heterogeneity of aquifer properties and spatial variability of the recharge. Based on the sharp-interface assumption, analytical expressions for the variances of the seawater-freshwater interface elevation and specific discharge in the longitudinal and transverse directions are developed using the perturbation approximation and spectral Fourier-Stieltjes nonstationary representations. We focus on the study of the impact of the heterogeneity of aquifer properties and recharge on these results.

Publications Copernicus
Download
Citation